#!/usr/bin/python
# -*- coding:utf-8 -*-


users = file('user.txt').readlines()
password = file('pass.txt').readlines()
email = file('email.txt').readlines()

new = []
for i in range(0, len(users)):
    record = users[i].strip() + ':' + password[i].strip() + ':' + email[i].strip()
    new.append(record)

for line in new:
    print line
